Answer:
The angle is a Obtuse Angle
It’s B)-6 hopes this helps
Answer:
4xy
Step-by-step explanation:
2 x 2 = 4, then just plop the x and y down, and there's your answer
Answer:
Step-by-step explanation:
17 : i 12x^2(4x−3) ,
ii : 5x(x−3y) ,
iii: 5xy^2z(3x^2−5z^2)
18) since the two polynomial are equal then :
2x^3+ax^2+3x-5 = x^3+x^2-2x+a same remainder x-2 then x=2
2(2)^3+a(2)^2+3(2)-5=(2)^3+(2)^2-2(2)+a solve for a
-3a=9
a=-3
18 ) x^3+y^3 -125+15xy
x^3+y^3-(5)^3-3(x)(y)(-5) then factorize x^3+y^3
(x+y)(x^2-xy+y^2)- (5)(5)^2-3(x)(y)(-5) common factor x+y-5
(x+y-5)(x^2-xy+y^2-5^2-3xy given x+y=5
5-5( x^2-xy+y^2-25-3xy) = 0
the value of the expression equal to zero
Step-by-step explanation:
Look for keywords
when you see "per" that means theres a rate (something happens every unit of time)
To write a rate you divide whatever happens by whatever unit of time youre useing
In this example our rate is 15$ <em>per</em> hour which can be written as:
15$/1 hour (but we usually dont write it if theres a 1)
You can think of this as a regular fraction
![\frac{15}{1 \: hour} \times 25 \: hour](https://tex.z-dn.net/?f=%20%5Cfrac%7B15%7D%7B1%20%5C%3A%20hour%7D%20%20%5Ctimes%2025%20%5C%3A%20hour)
Here the hour will cancel and youre left with $